v3.26.1
Accumulated Other Comprehensive Income (Loss) - Schedule of Reclassification out of Accumulated Other Comprehensive Income (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]    
Interest income $ 105,456 $ 110,786
Interest expense 33,613 37,799
Income tax expense (benefit) (5,954) (5,644)
Net gains/(losses) on securities 1,799 1
Pensions and other employee benefits 5,370 5,136
Net income 27,349 27,201
Reclassification out of Accumulated Other Comprehensive Income    
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]    
Net income 1,446 362
Reclassification out of Accumulated Other Comprehensive Income | Cash flow hedges:    
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]    
Interest income 0 0
Interest expense 36 428
Income tax expense (benefit) (8) (98)
Net income 28 330
Reclassification out of Accumulated Other Comprehensive Income | Available-for-sale securities:    
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]    
Interest income 40 40
Income tax expense (benefit) (421) (9)
Net gains/(losses) on securities 1,799 1
Net income 1,418 32
Reclassification out of Accumulated Other Comprehensive Income | Defined benefit pension plan:    
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]    
Income tax expense (benefit) 0 0
Pensions and other employee benefits 0 0
Net income $ 0 $ 0